On 28.03.2015 09:28, Ard Biesheuvel wrote:
> This updates the SHA-512 NEON module with the faster and more
> versatile implementation from the OpenSSL project. It consists
> of both a NEON and a generic ASM version of the core SHA-512
> transform, where the NEON version reverts to the ASM version
> when invoked in non-process context.
> 
> Performance relative to the generic implementation (measured
> using tcrypt.ko mode=306 sec=1 running on a Cortex-A57 under
> KVM):
> 
>       input size      block size      asm     neon    old neon
> 
>       16              16              1.39    2.54    2.21
>       64              16              1.32    2.33    2.09
>       64              64              1.38    2.53    2.19
>       256             16              1.31    2.28    2.06
>       256             64              1.38    2.54    2.25
>       256             256             1.40    2.77    2.39
>       1024            16              1.29    2.22    2.01
>       1024            256             1.40    2.82    2.45
>       1024            1024            1.41    2.93    2.53
>       2048            16              1.33    2.21    2.00
>       2048            256             1.40    2.84    2.46
>       2048            1024            1.41    2.96    2.55
>       2048            2048            1.41    2.98    2.56
>       4096            16              1.34    2.20    1.99
>       4096            256             1.40    2.84    2.46
>       4096            1024            1.41    2.97    2.56
>       4096            4096            1.41    3.01    2.58
>       8192            16              1.34    2.19    1.99
>       8192            256             1.40    2.85    2.47
>       8192            1024            1.41    2.98    2.56
>       8192            4096            1.41    2.71    2.59
>       8192            8192            1.51    3.51    2.69
> 
> Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
> ---
> 
> This should get the same treatment as Sami's sha56 version: I would like
> to wait until the OpenSSL source file hits the upstream repository so that
> I can refer to its sha1 hash in the commit log.
> 
>  arch/arm/crypto/Kconfig               |    2 -
>  arch/arm/crypto/Makefile              |    8 +-
>  arch/arm/crypto/sha512-armv4.pl       |  656 ++++++++++++
>  arch/arm/crypto/sha512-armv7-neon.S   |  455 ---------
>  arch/arm/crypto/sha512-core.S_shipped | 1814 
> +++++++++++++++++++++++++++++++++
>  arch/arm/crypto/sha512.h              |   14 +
>  arch/arm/crypto/sha512_glue.c         |  255 +++++
>  arch/arm/crypto/sha512_neon_glue.c    |  155 +--
>  8 files changed, 2762 insertions(+), 597 deletions(-)
>  create mode 100644 arch/arm/crypto/sha512-armv4.pl
>  delete mode 100644 arch/arm/crypto/sha512-armv7-neon.S

Acked-by: Jussi Kivilinna <jussi.kivili...@iki.fi>

>  create mode 100644 arch/arm/crypto/sha512-core.S_shipped
>  create mode 100644 arch/arm/crypto/sha512.h
>  create mode 100644 arch/arm/crypto/sha512_glue.c
> 
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